Laser sources for precision spectroscopy on atomic strontium

Year: 2006

Authors: Poli N., Ferrari G., Prevedelli M., Sorrentino F., Drullinger R.E., Tino G.M.

Autors Affiliation: Dipartimento di Fisica and LENS, Instituto Nazionale di Fisica Nucleare, Sezione di Firenze, Italy;
Instituto Nazionale di Fisica della Materia, Unità di Firenze, Polo Scientifico, 50019 Sesto Fiorentino, Italy;
Dipartimento di Chimica Fisica, Università di Bologna, Via del Risorgimento 4, 40136 Bologna, Italy

Abstract: We present a new laser setup designed for high-precision spectroscopy on laser cooled atomic strontium. The system, which is entirely based on semiconductor laser sources, delivers 200 mW at 461 nm for cooling and trapping atomic strontium from a thermal source, 4 mW at 497 nm for optical pumping from the metastable P-3(2) state, 12 mW at 689 nm on linewidth less than 1 kHz for second-stage cooling of the atomic sample down to the recoil limit, 1.2 W at 922 nm for optical trapping close to the \”magic wavelength\” for the 0-1 intercombination line at 689 nm. The 689 nm laser was already employed to perform a frequency measurement of the 0-1 intercombination line with a relative accuracy of 2.3 x 10(-11), and the ensemble of laser sources allowed the loading in a conservative dipole trap of multi-isotopes strontium mixtures. The simple and compact setup developed represents one of the first steps towards the realization of a transportable optical standards referenced to atomic strontium. (c) 2005 Elsevier B.V. All rights reserved.

Journal/Review: SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY

Volume: 63 (5)      Pages from: 981  to: 986

KeyWords: laser; optical spectroscopy; nonlinear optical conversion; laser frequency stabilization;
DOI: 10.1016/j.saa.2005.10.024

ImpactFactor: 1.270
Citations: 20
data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-11-24
References taken from IsiWeb of Knowledge: (subscribers only)

Connecting to view paper tab on IsiWeb: Click here
Connecting to view citations from IsiWeb: Click here